* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-//#define USE_SYNCPOINT_SEARCH
-
#include "libavutil/crc.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
{ 0x82, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS },
{ 0x83, AVMEDIA_TYPE_AUDIO, CODEC_ID_TRUEHD },
{ 0x84, AVMEDIA_TYPE_AUDIO, CODEC_ID_EAC3 },
+ { 0x85, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, /* DTS HD */
+ { 0x86, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, /* DTS HD MASTER*/
{ 0x90, AVMEDIA_TYPE_SUBTITLE, CODEC_ID_HDMV_PGS_SUBTITLE },
{ 0 },
};
{ MKTAG('d','r','a','c'), AVMEDIA_TYPE_VIDEO, CODEC_ID_DIRAC },
{ MKTAG('A','C','-','3'), AVMEDIA_TYPE_AUDIO, CODEC_ID_AC3 },
{ MKTAG('B','S','S','D'), AVMEDIA_TYPE_AUDIO, CODEC_ID_S302M },
+ { MKTAG('D','T','S','1'), AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS },
+ { MKTAG('D','T','S','2'), AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS },
+ { MKTAG('D','T','S','3'), AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS },
+ { MKTAG('V','C','-','1'), AVMEDIA_TYPE_VIDEO, CODEC_ID_VC1 },
{ 0 },
};
static int mpegts_probe(AVProbeData *p)
{
-#if 1
const int size= p->buf_size;
int score, fec_score, dvhs_score;
int check_count= size / TS_FEC_PACKET_SIZE;
else if(dvhs_score > score && dvhs_score > fec_score && dvhs_score > 6) return AVPROBE_SCORE_MAX + dvhs_score - CHECK_COUNT;
else if( fec_score > 6) return AVPROBE_SCORE_MAX + fec_score - CHECK_COUNT;
else return -1;
-#else
- /* only use the extension for safer guess */
- if (av_match_ext(p->filename, "ts"))
- return AVPROBE_SCORE_MAX;
- else
- return 0;
-#endif
}
/* return the 90kHz PCR and the extension for the 27MHz PCR. return
return timestamp;
}
-#ifdef USE_SYNCPOINT_SEARCH
-
-static int read_seek2(AVFormatContext *s,
- int stream_index,
- int64_t min_ts,
- int64_t target_ts,
- int64_t max_ts,
- int flags)
-{
- int64_t pos;
-
- int64_t ts_ret, ts_adj;
- int stream_index_gen_search;
- AVStream *st;
- AVParserState *backup;
-
- backup = ff_store_parser_state(s);
-
- // detect direction of seeking for search purposes
- flags |= (target_ts - min_ts > (uint64_t)(max_ts - target_ts)) ?
- AVSEEK_FLAG_BACKWARD : 0;
-
- if (flags & AVSEEK_FLAG_BYTE) {
- // use position directly, we will search starting from it
- pos = target_ts;
- } else {
- // search for some position with good timestamp match
- if (stream_index < 0) {
- stream_index_gen_search = av_find_default_stream_index(s);
- if (stream_index_gen_search < 0) {
- ff_restore_parser_state(s, backup);
- return -1;
- }
-
- st = s->streams[stream_index_gen_search];
- // timestamp for default must be expressed in AV_TIME_BASE units
- ts_adj = av_rescale(target_ts,
- st->time_base.den,
- AV_TIME_BASE * (int64_t)st->time_base.num);
- } else {
- ts_adj = target_ts;
- stream_index_gen_search = stream_index;
- }
- pos = ff_gen_search(s, stream_index_gen_search, ts_adj,
- 0, INT64_MAX, -1,
- AV_NOPTS_VALUE,
- AV_NOPTS_VALUE,
- flags, &ts_ret, mpegts_get_pcr);
- if (pos < 0) {
- ff_restore_parser_state(s, backup);
- return -1;
- }
- }
-
- // search for actual matching keyframe/starting position for all streams
- if (ff_gen_syncpoint_search(s, stream_index, pos,
- min_ts, target_ts, max_ts,
- flags) < 0) {
- ff_restore_parser_state(s, backup);
- return -1;
- }
-
- ff_free_parser_state(s, backup);
- return 0;
-}
-
-static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
-{
- int ret;
- if (flags & AVSEEK_FLAG_BACKWARD) {
- flags &= ~AVSEEK_FLAG_BACKWARD;
- ret = read_seek2(s, stream_index, INT64_MIN, target_ts, target_ts, flags);
- if (ret < 0)
- // for compatibility reasons, seek to the best-fitting timestamp
- ret = read_seek2(s, stream_index, INT64_MIN, target_ts, INT64_MAX, flags);
- } else {
- ret = read_seek2(s, stream_index, target_ts, target_ts, INT64_MAX, flags);
- if (ret < 0)
- // for compatibility reasons, seek to the best-fitting timestamp
- ret = read_seek2(s, stream_index, INT64_MIN, target_ts, INT64_MAX, flags);
- }
- return ret;
-}
-
-#else
-
static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, int flags){
MpegTSContext *ts = s->priv_data;
uint8_t buf[TS_PACKET_SIZE];
return 0;
}
-#endif
-
/**************************************************************/
/* parsing functions - called from other demuxers such as RTP */
.read_seek = read_seek,
.read_timestamp = mpegts_get_pcr,
.flags = AVFMT_SHOW_IDS | AVFMT_TS_DISCONT,
-#ifdef USE_SYNCPOINT_SEARCH
- .read_seek2 = read_seek2,
-#endif
};
AVInputFormat ff_mpegtsraw_demuxer = {
.read_seek = read_seek,
.read_timestamp = mpegts_get_pcr,
.flags = AVFMT_SHOW_IDS | AVFMT_TS_DISCONT,
-#ifdef USE_SYNCPOINT_SEARCH
- .read_seek2 = read_seek2,
-#endif
.priv_class = &mpegtsraw_class,
};
projects / ffmpeg / blobdiff